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inn [45]
3 years ago
5

Find 5x9 and 1x9, and add the answers.

Mathematics
2 answers:
alexira [117]3 years ago
7 0
5x9=45
1x9=9
Then add 45 and 9 to get 54 pls mark me brainiest pls
kipiarov [429]3 years ago
4 0
5*9=45
1*9=9
Then add both numbers together
45+9=54
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Complete the table below.<br> X Y=3x^2 Y=3x<br> 0 0 1<br> 1<br> 2
wlad13 [49]

Answer:

y= 3x^2 y= 3^x

1. 3. 3

2. 12. 9

Step-by-step explanation:

3(1)^1

3

3^1

3

3(2)^2

3(4)

12

3^2

9

5 0
2 years ago
PLEASE HELP
irina [24]
Take the longer leg length as x

(x-8)^2+x^2=(x+8)^2 \\ \\ x^2-16x+64+x^2=x^2+16x+64 \\ \\ x^2-32x=0

Use the formular
x={ \frac{-b+ \sqrt{ b^2-4ac}}{2a} } \\ \\ x={ \frac{32+32}{2} } \\ \\ x=32

∴ shorter leg = 32 - 8 = 24ft
longer leg = 32ft
hypotenuse = 32 + 8 = 40ft
8 0
3 years ago
A sample of iron ore has a density of 7.87 what is its mass? Show all of your work. If it measures 7.5 cm x 2.53 em x 7.15 cm,
mr_godi [17]

Answer:

Mass=1068gr

Step-by-step explanation:

Volume= 7.5 cm x 2.53 cm x 7.15 cm=135.7cm^3

Density=7.87gr/cm^3

Mass=Density*Volume=135.7*7.87=1068gr

7 0
3 years ago
Nina and Ryan have a combined age of 50. Rayan is 5 years old than twice Nina's age. Write a system of equation to represent how
kotegsom [21]

Answer:

n + (2n + 5) = 50

Step-by-step explanation:

n = Nina’s age

2n = twice Nina’s age
5= Ryan is 5 years older than twice Nina’s age

50 = both their ages combined.

So,

n + (2n + 5) = 50

5 0
1 year ago
Read 2 more answers
What is 3x+10 it’s for khan academy
marishachu [46]

Answer:

There are no like terms.

Step-by-step explanation:

Let's simplify step-by-step.

3x+10

There are no like terms.

Answer:

=3x+10

<h2>Ps: Mathpapa Is A Great Algebra Calculator</h2>
8 0
3 years ago
Read 2 more answers
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